php - mysql warning: Cannot set query -

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i'm having mysql statement query table 10+ millions of rows, joining other table more rows, works ok if select rows within date-range of 1 month, increase date-range (and more results, on 900 results actually) i'm getting mysql warning title of question, results returned.

anyone knows warning means?

edit:

warning: cannot set query. here written query.

solved. caching problem, after caching turned off works.

it looks missing 2nd table name query members

so please try update clause

from members_data

to

from members_data, members

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